Behringer PX1000 EN

PX1000 User’s Manual ENGLISH

Version 1.2 May 2003

ULTRAPATCH



ULTRAPATCH PX1000

2. LOOMING PROBLEMS 4. LABELLING

Loom wiring is an art in itself, and it is worth the time to get it With so many patch points in use at any one time, you will
right. First, it is important to avoid ground loops (a looped wire probably never be able to keep track of them without labelling.
acts like an antenna, picking up hum and electromagnetic Your BEHRINGER ULTRAPATCH PX1000 features white labels
radiation). Think of a tree. Every part of that tree is connected above the upper jacks and white labels below the lower jacks
to every other part, but only by one route. That’s how the total for the purpose of labelling. When labelling, it is advisable not to
grounding picture for your entire studio should look. Don’t remove use permanent markers as you may want to re-label, if you
the ground connection of your mains cable plug to reduce audible decide to re-configure your patchbay signal routing again.
50/60 Hz mains hum. Instead, you should disconnect the signal
shield somewhere (one or several audio cables) in the signal 5. PATCHBAY ORGANIZATION
chain.
Attached is an example configuration that shows how you
It is good practice to ensure that all screens are commoned at can use your patchbay. This is only an example to illustrate the
the patchbay, in which case all equipment would be grounded use of your PX1000. Depending on your application, you may
from this point via a single screen (more than one route = an need several PX1000s. It should be noted that patchbays should
earth loop), while mains-earthed equipment would have all be placed one below the other in such a way that the patch
screens cut at the equipment end. cords don’t hang carelessly over the patchbays.

Some equipment has an independent signal and mains 6. SPECIFICATIONS
grounding. In this case, at least one screen should ground the
equipment. Sometimes, the only way to find out is “suck and Height 1 3/4" (44.5 mm)
see”.
Width 19" (482.6 mm)
Please assure that using the patchbay does not disturb the
studio’s grounding architecture. Always use patch leads that Depth 2 3/4" (69.3 mm)
are as short as possible with the screen connected at both
ends. Weight approx. 1.3 kg (2 7/8 lbs)

After removing the mains hum from the system, make up your Connectors 1/4" TRS balanced
cable looms from the patchbays outwards, and use cable ties,
flexible sheaths, multicores, etc. to keep the back of your racks
orderly.

3. CAUTIONS

Avoid routing digital signals near a patchbay because the pulse BEHRINGER is constantly striving to maintain the highest professional standards. As a
signal used for the transmission of such signals causes heavy result of these efforts, modifications may be made from time to time to existing products without
interference in analog signals. Additionally, normal patchbays prior notice. Specifications and appearance may differ from those listed or shown.
change the impedance of the digital cable route, which
causes interference in the digital path. Use the BEHRINGER
ULTRAMATCH PRO SRC2496 specifically designed for this and
other digital signal-related functions.

Microphone inputs operate at a level several orders of magnitude
lower than line levels (+4 dBu or -10 dBV). Therefore, they
should never be routed via a patchbay. In any case, patching in
a field with +48 V DC (phantom power) is to be avoided at all
costs. It is best to plug mics directly into the mixing console or via
special XLR type wall boxes connected to the mic inputs of the
console using good quality balanced multicore cables.

6. SPECIFICATIONS 3